Gas-generator.



.B- F. 64 W. A. ROBERTS- GAS GENERATOR.

APPLICATION FILED DEC. 28. 1916 1,237,557 Patented Aug. 21, 19175 I5. F- ROBERTS l- W. H-ROBERT pnrrnp s'rarns rn rnn r option.

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Specification of Letters Patent.

Patented Aug, 1%)1'7.

Application filed December 28, 1916. Serial No. 139,355.

To all whowm't mag concern:

Be 1t known that WQ,BENJ A1\ IIN 1. Ronnn'rs and Win-min A. ,ROBERTS, c t zens of the United States, residing at Brazil, in the to the accompanying drawings.

This invention comprehends certain new and useful improvements in acetylene generators, and relates part cularly to an improved device of this character which is designed for use in recharginggas tanks such as those used with automobiles, motorcycles and the like for illinninating purposes.

The inventionhas for its primary object a practical, durable and efficient construction of device of'this character, the parts of which may be easily manufactured and assembled and not liable to get out of order, and such'as to requirevery little if any, at tention in operation, and the invent-ion also aims to generally improve. devices of this class so as to render them moreuseful and commercially desirable.

With these and other objects in view, as will more fully appear as the description proceeds, the invention consists in certain constructions, arrangements and combina tions of the parts that we shall hereinafter more fully describe and claim For a full understanding of the invention,

reference is to be ,had to the following description and accompanying drawing, in which i v Figure l is a vertical longitudinal sec tional view of an. acetylene gas generator embodying the improvements of our invention,

Fig. 2 is a side elevation-of-the apparatus, and

Fig. 3 is a horizontal section on the line 3-3 of Fig. 1.

Corresponding and like parts are referred to in the following description and designated in all of the views of the accompanying drawing by like reference characters.

Our improved gas generating device comprises superposed cylinders 1 and 2 that are provided at their abutting ends with flanges 3 whereby they may be readily secured toether in a detachable manner by bolts or s imilar fastening devices 4. Preferably the upper cylinderl has legs 5 secured to it whereby the device may be readily supported upon theground or floor. The upper cylinder 1 is provided with a bottom 6 having openings v and 8 extending therethrou h, the opening 7 being preferably threaded and designed to receive the.

lower threaded end of a vertically disposed tube 9 which extends upwardly within the cylinder 1 above the level of the water. which said cylinder-is intended to, contain. The openingS constitutes a seat for a valve L0 carriedby andsecured. to the lower end of a vertically disposed stem 11 which extends upwardly in and above the upper end of the cylinder 1 and through a head or cap disk 12 secured by bolts or similar fastening'devices 13 to the upper flange 1, of said cylinder, and the upper end-of the stem 11 is provided with a finger piece 1.5 by which it may be easily manipulated. Preferably, the head. or cap disk 12' carries a pressure gage 1 6.and a safety valve 17 as shown.

The upper cylinder 1 is'formed with a lateral enlargement whichis vertically elon gated, as shown, and which constitutes a chamber 18, said chamber being closed at its bottom as clearly illustrated in the drawing, and provided at its bottom with laterally disposed port 19 which communicates with the lower end of a vertical passage 20 formed by a wall or partition 21 as shown,

andleading at its upperend by means of a lateral port 22intothe nterior-of the cylinderl near the upper ,end of the latter and preferably substanti ally n horizontal alinement withthe upperend of the tube 9. The

chamber 18 contains a filter of gau /e or the like, supported upon ,lugs 23 or similar devices; illlCl'iLlOOYG the filter the chamber is provided with an outlet 25 through which the gas issues,.and from which it i's'designed 1 to pass into the tank to be filled.

Preferably a wire basket 26 is disposed within the lower cylinder 2, for the purpose of holding the carbid, and said cylinder is provided with a drain cock 27.

From the foregoing description in connection with the accompanying drawing, the operation of our improved acetylene gas generator for refilling tanks will be apparent. In the practical use of the device, water is contained within the cylinder 1 and the chamber 18 and carbid is held within the basket 26 in the lower chamber 2,

- into the tank to be filled'or refilled, so that said lower chamber being connected by the bolts l to the upper chamber after the lower chamber is filled. Upon opening the valve 10 by manipulating the valve stem 11, it is obvious that the water falling from the upper cylinder 1 into the lower cylinder 2 will cause the gas to be generated, and the gas will flow upwardly from the cylinder 2 through the tube 9 and then downwardly through the passage 20 into the water contained within the chamber 18 and finally upwardly through the preferably gauze filter 28 from whence it will be passed the gas will be thoroughly filtered and cleansed of all dust and other impurities.

WVhile the accompanying drawing illustrates what we believe to be the preferred embodiment of our invention, it is to be understood that the invention is not limited thereto, but that various changes may be made in the construction, arrangement, and

proportions of the various parts without departing from the scope of the invention as claimed. I

What is claimed, is

1. A gas generator of the character described, comprising upper and lower cylinders connected together in superposed relation, legs connected to the upper cylinder and supporting same with the lower cylinder suspended therefrom, the upper cylinder being provided with a lateral enlargement constituting a vertically elongated chamber, and said chamber and the upper cylinder being designed to contain water, and the lower cylinder to contain carbid, the upper cylinder being provided with a bottom having openings extending therethrough, a valve controlling one .of said openings and provided with a'stem extending upwardly above the top of the upper cylinder, a tube mounted in the upper cylinder with its lower end in the other opening, and a filter in the upper end of said chamber, there being upper and lower ports and a vertically disposed passage establishing communication between the upper end of the upper cylinder on a line with the upper end of said tube, and the lower end of said chamber, substantially as shown and described.

2. A gas generator of the character described, comprising upper and lower cylinders arranged in superposed relation to each other, the lower cylinder being designed to contain carbid and the upper cylinder water,

-a tube mounted in the upper cylinder and vertically disposed therein and communicating with the interior of both cylinders, and a valve designed to establish communication between said cylinders independently of said tube, the upper cylinder being formed with a vertically elongated enlargement, with a vertically disposed passage and upper and lower ports establishing communication, respectively, with the upper end of said cylinder and the lower end of said chamber, and said chamber being provided at its upper end with an outlet opening.

3. A gas generator of the character described, comprising upper and lower cylinders arranged in superposed relation to each other, the lower cylinder being designed to contain carbid and the upper cylinder water,

a tube mounted in the upper cylinder and vertically disposed therein and communicating with the interior of both cylinders, and

a valve designed to establish communication between said cylinders independently of said tube, the upper cylinder being formed with a vertically elongated enlargement, and a vertically disposed passage and upper and lower ports establishing communication, respectively, between the upper. end of said cylinder and the lower end of said chamber, and said chamber being provided at its upper end with an outlet opening, said chamber being also formed with lugs below said opening, and a filter supported on said lugs.

In testimony whereof we hereunto affix our signatures in the presence of two witnesses.

BENJAMIN F. ROBERTS. WILLIAM AUTBURN ROBERTS.

Witnesses JAMES D. CLnAnwA'rnRs, JOHN H. CLEARwA'rEns.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

. Washington, D. G. 

